Bark stripping preference of sika deer, Cervus nippon, in terms of bark chemical contents
Bark stripping preference of sika deer, Cervus nippon, in terms of bark chemical contents
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DOI：
10.1016/s0378-1127(02)00336-5
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发表时间：
2003-04-07
影响因子：
3.7
通讯作者：
Shibata, E
中科院分区：
文献类型：
--
作者：
Ando, M;Yokota, HO;Shibata, E
近年来，在日本山，西卡鹿的数量增加。日本中部的大岱原（Ohdaigahara）因树皮剥落而对树木造成严重损害。我们评估了哪些树种选择树皮使用Ilev的选择指数和树皮化学成分的每一个树种。1999年7月至9月，我们测量了25个树种的剥皮面积，并分析了8个树种树干树皮的粗蛋白质、纤维和矿物质含量。西卡鹿对山荆树皮和弯曲膝状叶树树皮的偏好性较强，对毛毛豆和白砂槭树皮的偏好性较差。树皮化学成分含量除Ca与lvlev选择指数呈负相关外，其余均与lvlev选择指数无显著相关性。本研究分析的树皮含量不能解释西卡鹿对树皮的偏好。(C)2002 Elsevier Science B.V.保留所有权利。
Recent increases in the population of sika deer, Cervus nippon, on Mt. Ohdaigahara in central Japan, have resulted in severe damage to trees through bark stripping. We evaluated which tree species are selectively barked using Ilev's selection index and the bark chemical contents of each tree species. We measured the area of stripped bark for 25 tree species from July to September 1999 and analyzed the crude protein, fiber and mineral contents of the trunk bark of eight tree species. Sika deer preferred the bark of Clethra barbinervis and flex geniculata but not Fagus crenata and Acer shirasawanum. The bark chemical contents showed no significant relationships with lvlev's selection index except for Ca, which had a negative relationship. The bark contents analyzed in this study do not explain the tree bark preferences of sika deer. (C) 2002 Elsevier Science B.V. All rights reserved.